It depends. It's certainly not the norm for senior players because you tend to know what you're buying/selling but it's often the case with younger players. Like the Lewis Gibson fee is often quoted as £6m but we only actually paid £1m , it'll basically only cost £6m if he goes on to captain England and win the ballon d'or. I've no idea if this deal is structured that way obviously, but it is very common when untested players move, because both clubs want to cover themselves.That’s fair enough and I’m no expert on these things. But if they are quoting 2mil, then it will be a lot more than a 100k it may be 1.5 mil paid over 3yrs with 0.5 paid in add ons. It’s very rare add ons or bonuses make up the majority of the fee